Answer:
Racism in the past was a lot worse, starting by the fact that during an important amount of time, minority populations were either enslaved, or subjected to serfdom, or obliged to live in remote reservations and robbed of their lands. There were also lynching's, segregations in public and private places like schools, restaurants, and buses. Treatment was often unequal under the law, and job and education opportunities were less.
Racism in the present still exists, and it is still a problem, especially because if often manifests itself in ways that are not so apparent. However, it is undeniable that a great degree of progress has been made in this matter in recent decades.
The Mediterranean Sea separated the Greek islands. These islands grew into separate city-states as they were separated by the sea.
The hills and mountains in Greece separated the individual city-states. These cities were separated by these hills and mountains, which led to them developing into different city-states.
